<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="utf-8"/>
</head>
<style>
    body {
        text-align: center;
        width: ${printSize}px;
    }

    img {
        max-width: 100%;
        height: auto;
    }
</style>
<body>
<img width="${qrSize}" src="${qrUrl}">
</body>
</html>